Summary

Add usage examples to the coder exp task create command help text to improve discoverability and user experience.

Current Behavior

coder exp task create --help

Shows minimal help without examples.

Proposed Changes

Add an EXAMPLES section to the help output:

EXAMPLES:
  # Create a task with all flags specified
  coder exp task create --input "Refactor CLI auth to use OAuth flow" --template coder --org coder
  
  # Create a task with a preset
  coder exp task create --input "Add new API endpoint" --template coder --preset backend

Benefits

• Better discoverability of command usage
• Helps users understand the expected input format
• Consistent with other CLI commands that include examples